A hot spots, a magic angles, and magnetoresistance in quasi-1D metals

P. M. Chaikin

doi:10.1103/PhysRevLett.69.2831

A hot spots, a magic angles, and magnetoresistance in quasi-1D metals

P. M. Chaikin

Research output: Contribution to journal › Article › peer-review

Abstract

A simple quasiclassical model is presented to explain the large, highly anisotropic magnetoresistance and striking magnetoresistance dips at magic angles in the Bechgaard salts, (TMTSF)2X. In the presence of a magnetic field the electrons are swept along the open orbit sheets of the Fermi surface into hot spots where the scattering rate is high. At magic angles the commensurate motion allows some fraction of the electrons to avoid the hot spots. A striplike hot region seems appropriate for (TMTSF)2PF6 and suggests a strong role for electron interactions.

Original language	English (US)
Pages (from-to)	2831-2834
Number of pages	4
Journal	Physical Review Letters
Volume	69
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.69.2831
State	Published - 1992

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.69.2831

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abstract = "A simple quasiclassical model is presented to explain the large, highly anisotropic magnetoresistance and striking magnetoresistance dips at magic angles in the Bechgaard salts, (TMTSF)2X. In the presence of a magnetic field the electrons are swept along the open orbit sheets of the Fermi surface into hot spots where the scattering rate is high. At magic angles the commensurate motion allows some fraction of the electrons to avoid the hot spots. A striplike hot region seems appropriate for (TMTSF)2PF6 and suggests a strong role for electron interactions.",

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AB - A simple quasiclassical model is presented to explain the large, highly anisotropic magnetoresistance and striking magnetoresistance dips at magic angles in the Bechgaard salts, (TMTSF)2X. In the presence of a magnetic field the electrons are swept along the open orbit sheets of the Fermi surface into hot spots where the scattering rate is high. At magic angles the commensurate motion allows some fraction of the electrons to avoid the hot spots. A striplike hot region seems appropriate for (TMTSF)2PF6 and suggests a strong role for electron interactions.

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ER -

A hot spots, a magic angles, and magnetoresistance in quasi-1D metals

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